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. 2022 Apr 29;10(5):703. doi: 10.3390/vaccines10050703

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Data show the difference in means of the neutralizing titer (NT-Ab) against 14 different SARS-CoV-2 variants in naïve-HCW and exposed-HCW after 3 doses of BTN162b2 and in unvaccinated convalescent-PD, in comparison to the fully vaccinated Omicron-HCW NT-Ab values. The more distant the values are from the origin line (0), the higher the difference between the paired populations. **** p < 0.0001; *** p = 0.0001; ** p= 0.001; * p < 0.05. (Omicron-HCW—convalescent-PD: mean difference between Omicron-HCW and convalescent-PD groups; Omicron-HCW—naïve-HCW: mean difference between Omicron-HCW and naïve-HCW groups; Omicron-HCW—experienced-HCW: mean difference between Omicron-HCW and experienced-HCW groups).